i have yellow, black (which is the ground) and yellow and purple. i have the regular black 7 series. can someone give me a schematic or does any body knows where i should put the wires?

 

Where are you mounting that can determine a few easy spots.
( vennt, on steering column,or on dash?)
I have a glowshift but the blackoutw/ led in my vent.

 

vent, left side

 

I put mine in the same place.
I got a add a circuit from autozone for the possitive line.
As far as the negative I put it under one of the bolts that are screwed into the side panel.
Get extrawire, have your vent assembly ready, wire crimpers all that good stuff.
I didnt even use the yelow I actually just left it alone.
I connected the possitive to the add a circuit for an accessoryfuse thats active when I turn the ignition.

Im sure someof this doesnt make sense try this PDF
or PM me.

 

if the wires are not connected, it still should be able to read boost right? i tested mine and it reads something for a minute then after that, no more reading.

 

The wires are just for the lights. If you jsut install the ground and the 12v power source you should be fine.